Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period
We report stable isotope, core scanning XRF, and ice-rafted detritus (IRD) data in glacial-aged sediments from piston Core KN166-14-JPC-13 (hereafter referred to as JPC-13) retrieved at 53.1°N 33.5°W on the southern Gardar Drift, North Atlantic. A chronology was established by correlating millennial...
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Online Access: | http://eprints.esc.cam.ac.uk/1986/ http://eprints.esc.cam.ac.uk/1986/1/sdarticle.pdf http://www.sciencedirect.com/science/article/B6VBC-517GVXH-1/2/8e2d9aa9fb70b4d5a112b0a6f137b470 https://doi.org/10.1016/j.quascirev.2010.09.006 |
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ftucambridgeesc:oai:eprints.esc.cam.ac.uk:1986 2023-05-15T13:32:21+02:00 Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period Hodell, David A. Evans, Helen F. Channell, James E.T. Curtis, Jason H. 2010-12 application/pdf http://eprints.esc.cam.ac.uk/1986/ http://eprints.esc.cam.ac.uk/1986/1/sdarticle.pdf http://www.sciencedirect.com/science/article/B6VBC-517GVXH-1/2/8e2d9aa9fb70b4d5a112b0a6f137b470 https://doi.org/10.1016/j.quascirev.2010.09.006 en eng http://eprints.esc.cam.ac.uk/1986/1/sdarticle.pdf Hodell, David A. and Evans, Helen F. and Channell, James E.T. and Curtis, Jason H. (2010) Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period. Quaternary Science Reviews, 29 (27-28). pp. 3875-3886. DOI https://doi.org/10.1016/j.quascirev.2010.09.006 <https://doi.org/10.1016/j.quascirev.2010.09.006> 01 - Climate Change and Earth-Ocean Atmosphere Systems Article PeerReviewed 2010 ftucambridgeesc https://doi.org/10.1016/j.quascirev.2010.09.006 2020-08-27T18:09:05Z We report stable isotope, core scanning XRF, and ice-rafted detritus (IRD) data in glacial-aged sediments from piston Core KN166-14-JPC-13 (hereafter referred to as JPC-13) retrieved at 53.1°N 33.5°W on the southern Gardar Drift, North Atlantic. A chronology was established by correlating millennial-scale features in the benthic [delta]18O record to Portuguese Margin Core MD95-2042. Once the alignment of benthic [delta]18O of JPC-13 to MD95-2042 is fixed, the relative timing of proxy variables is used to determine the phasing of changes in IRD and surface-deep hydrography. Each peak in North Atlantic IRD coincided with a decrease in benthic [delta]18O that, in turn, has been linked to warming in Antarctica (Events A1-A7). The IRD pulses are followed shortly thereafter by abrupt decreases in planktonic [delta]18O, indicating warming and increased heat transport to the subpolar North Atlantic associated with Greenland interstadials (GIS) 8, 12,14, and 16-17. Grain-size and elemental (K/Ti) variations indicate that Iceland-Scotland Overflow Water (ISOW) was stronger during these long, warm interstadial periods of Marine Isotope Stage (MIS) 3. The results are consistent with interhemispheric phase relationships inferred from Iberian Margin sediment cores and with methane synchronization of Greenland and Antarctic ice cores. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland Iceland North Atlantic University of Cambridge, Department of Earth Sciences: ESC Publications Antarctic Greenland Quaternary Science Reviews 29 27-28 3875 3886 |
institution |
Open Polar |
collection |
University of Cambridge, Department of Earth Sciences: ESC Publications |
op_collection_id |
ftucambridgeesc |
language |
English |
topic |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
spellingShingle |
01 - Climate Change and Earth-Ocean Atmosphere Systems Hodell, David A. Evans, Helen F. Channell, James E.T. Curtis, Jason H. Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
topic_facet |
01 - Climate Change and Earth-Ocean Atmosphere Systems |
description |
We report stable isotope, core scanning XRF, and ice-rafted detritus (IRD) data in glacial-aged sediments from piston Core KN166-14-JPC-13 (hereafter referred to as JPC-13) retrieved at 53.1°N 33.5°W on the southern Gardar Drift, North Atlantic. A chronology was established by correlating millennial-scale features in the benthic [delta]18O record to Portuguese Margin Core MD95-2042. Once the alignment of benthic [delta]18O of JPC-13 to MD95-2042 is fixed, the relative timing of proxy variables is used to determine the phasing of changes in IRD and surface-deep hydrography. Each peak in North Atlantic IRD coincided with a decrease in benthic [delta]18O that, in turn, has been linked to warming in Antarctica (Events A1-A7). The IRD pulses are followed shortly thereafter by abrupt decreases in planktonic [delta]18O, indicating warming and increased heat transport to the subpolar North Atlantic associated with Greenland interstadials (GIS) 8, 12,14, and 16-17. Grain-size and elemental (K/Ti) variations indicate that Iceland-Scotland Overflow Water (ISOW) was stronger during these long, warm interstadial periods of Marine Isotope Stage (MIS) 3. The results are consistent with interhemispheric phase relationships inferred from Iberian Margin sediment cores and with methane synchronization of Greenland and Antarctic ice cores. |
format |
Article in Journal/Newspaper |
author |
Hodell, David A. Evans, Helen F. Channell, James E.T. Curtis, Jason H. |
author_facet |
Hodell, David A. Evans, Helen F. Channell, James E.T. Curtis, Jason H. |
author_sort |
Hodell, David A. |
title |
Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
title_short |
Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
title_full |
Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
title_fullStr |
Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
title_full_unstemmed |
Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
title_sort |
phase relationships of north atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period |
publishDate |
2010 |
url |
http://eprints.esc.cam.ac.uk/1986/ http://eprints.esc.cam.ac.uk/1986/1/sdarticle.pdf http://www.sciencedirect.com/science/article/B6VBC-517GVXH-1/2/8e2d9aa9fb70b4d5a112b0a6f137b470 https://doi.org/10.1016/j.quascirev.2010.09.006 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctica Greenland Iceland North Atlantic |
genre_facet |
Antarc* Antarctic Antarctica Greenland Iceland North Atlantic |
op_relation |
http://eprints.esc.cam.ac.uk/1986/1/sdarticle.pdf Hodell, David A. and Evans, Helen F. and Channell, James E.T. and Curtis, Jason H. (2010) Phase relationships of North Atlantic ice-rafted debris and surface-deep climate proxies during the last glacial period. Quaternary Science Reviews, 29 (27-28). pp. 3875-3886. DOI https://doi.org/10.1016/j.quascirev.2010.09.006 <https://doi.org/10.1016/j.quascirev.2010.09.006> |
op_doi |
https://doi.org/10.1016/j.quascirev.2010.09.006 |
container_title |
Quaternary Science Reviews |
container_volume |
29 |
container_issue |
27-28 |
container_start_page |
3875 |
op_container_end_page |
3886 |
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1766026121791406080 |